Steve realizes as he waits on Zerxus answer that he hasn't said a word about anything that came along with the military experiment, except that he eats a lot and heals faster than someone un... tampered with? would.

His inclination is to offer up why the difference in the way the air smells is pretty stark to him.

Then he remembers who he is and decides to Not Do That.

Especially since one of them is way more convinced it wasn't on purpose than the other. "Unless it was intentional." He doesn't even pause his eating. "Knowing not to contradict's a good idea. I'm gonna have to interact with somebody besides you at some point."